a pro-apoptotic protein that binds to FAS antigen. Potentiates but cannot initiate FAS-induced apoptosis. Its pro-apoptotic activity requires a ubiquitin-like domain but not the FAS-binding domain. Phosphorylation by protein kinase CK2 influences transport into nucleus. Two transcript variants encoding different protein isoforms have been described. Note: This description may include information from UniProtKB.
Protein type: Apoptosis; Nuclear receptor co-regulator